One Kendall Square
Mixed Use Property in Cambridge, MA
At a glance
One Kendall Square is a 246,793-square-foot mixed use property building in Cambridge, Massachusetts, built in 1988. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 186.5 kBtu/ft² and 2,912 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 186.5 kBtu/ft² |
| Source EUI | 369.2 kBtu/ft² |
| GHG emissions | 2,912 tCO₂e |
| GHG intensity | — |
| Electricity | 7,166,298 kWh |
| Natural gas | 215,831 therms |
| Water use | 3,696 kgal |
| Gross floor area | 246,793 sq ft |
| Source record | cambridge:B1318:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 186.5 kBtu/ft² | 2,912 tCO₂e | |
| 2023 | — | 170.4 kBtu/ft² | 2,664 tCO₂e | |
| 2022 | — | 175.5 kBtu/ft² | 2,730 tCO₂e | |
| 2021 | — | 180.8 kBtu/ft² | 2,832 tCO₂e | |
| 2020 | — | 62.7 kBtu/ft² | 1,123 tCO₂e | |
| 2019 | — | — | 0 tCO₂e | |
| 2018 | — | — | 0 tCO₂e | |
| 2017 | 100 | 6.4 kBtu/ft² | 425 tCO₂e | |
| 2016 | — | 75.6 kBtu/ft² | 1,530 tCO₂e | |
| 2015 | 100 | 1.6 kBtu/ft² | 123 tCO₂e |
Compliance context
BEUDO
Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
Ownership
ARE-MA REGION NO.59, LLC
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- One Kendall Square
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36710, -71.09060
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 325 Main Stscore 87
Office · 494,512 sq ft
- 145 Broadwayscore 91
Office · 490,000 sq ft
- 314 Main St.score 80
Office · 482,220 sq ft
- 303 Binney Stscore —
Laboratory · 480,000 sq ft
See also: most efficient in Cambridge · biggest emitters
How does One Kendall Square compare with other mixed use property buildings in Cambridge?
The latest disclosures cover 22 mixed use property buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 186.5 kBtu/ft² is about 16% above the average of 160.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 246,793 sq ft, it is about twice the average floor area of 121,587 sq ft for those buildings. It was built in 1988, 18 years later than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has One Kendall Square's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for One Kendall Square, covering report years 2015–2024. Its ENERGY STAR score was 100 in both 2015 and 2017. Site EUI moved from 1.6 kBtu/ft² (2015) to 186.5 kBtu/ft² (2024), an 11556% increase. Reported emissions went from 123 tCO₂e to 2,912 tCO₂e over the same span (up 2271%).
What does a site EUI of 186.5 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. One Kendall Square's 186.5 kBtu/ft² across 246,793 sq ft works out to about 46 billion Btu (13,489 MWh-equivalent) in 2024. Its source EUI of 369.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 7,166,298 kWh of electricity, 215,831 therms of natural gas and 3,696 thousand gallons of water for the year.
Which law requires One Kendall Square to report its energy use?
One Kendall Square reports under BEUDO, the legal basis of Cambridge's Building Energy Use Disclosure Ordinance (BEUDO), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record cambridge:B1318:2024). Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
More mixed use property buildings in Cambridge
- 200 Technology Square· 177,161 sq ft · EUI 417.2 kBtu/ft²
- 300 Technology Square· 175,609 sq ft · score 1 (D)
- One Kendall Square· 140,058 sq ft · score 10 (D)
- 300 3 Rd ST· 131,639 sq ft · EUI 255.9 kBtu/ft²
- 50 Church Street· 96,605 sq ft · EUI 26.3 kBtu/ft²
- One Kendall Square· 71,730 sq ft · EUI 171.1 kBtu/ft²
- All Cambridge benchmarked buildings· BEUDO
- Most efficient large buildings in Cambridge
- Least efficient large buildings in Cambridge
- Biggest emitters in Cambridge
Frequently asked questions
What is One Kendall Square's energy grade?
One Kendall Square did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 186.5 kBtu/ft².
How much energy does One Kendall Square use?
Its 2024 site energy-use intensity was 186.5 kBtu/ft² (369.2 kBtu/ft² source) across 246,793 sq ft, including 7,166,298 kWh of electricity and 215,831 therms of natural gas.
What are One Kendall Square's carbon emissions?
One Kendall Square reported 2,912 tCO₂e of greenhouse-gas emissions for 2024.
Where is One Kendall Square?
One Kendall Square is in Cambridge, Massachusetts. Its coordinates are 42.36710, -71.09060 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is One Kendall Square and when was it built?
One Kendall Square has 246,793 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as mixed use property.
Is One Kendall Square covered by BEUDO?
Yes — it appears in the 2024 Building Energy Use Disclosure Ordinance (BEUDO) disclosure, which lists the buildings reporting under BEUDO.
Working with Cambridge building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: Building Energy Use Disclosure Ordinance (BEUDO) (BEUDO), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “One Kendall Square, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/one-kendall-square-f6ac4260 (data as of October 2, 2026).